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Marks & Spencer’s is expected to report another quarter of falling food and clothing sales this week, but insists its strategy is still on track.

Analysts expect the high street chain to post a 2% decline in like-for-like food sales and a 1.2% drop in its clothing and home division. Pre-tax profits are expected to be down by around 7% to £203m, midway between its forecast range.

The falling sales reflect the impact of a five-year strategy to transform M&S. The retailer is set to close almost a third of its shops and is investing in digital and new technology to improve performance.

The government is launching an inquiry into online pricing that will look into how personal data can be used to set individual prices for items such as holidays, cars and household goods.

The research, conducted by the competition watchdog, will consider the use and prevalence of ‘dynamic pricing’ and how data such as location, marital status, age or travel history can be used to set prices. The concern is that technology, including artificial intelligence and bots, could be used to charge some shoppers more than others.

Online prices often fluctuate during the day depending on demand, Uber’s pricing is a clear example of this.

Andrea Coscelli, chief executive of the Competition and Markets Authority, says: “With more of us shopping online, it’s important we understand how advances in technology impact consumers … so we can understand how best to protect people from unfair practices where they exist. We will also use the results in our ongoing efforts to help vulnerable consumers.”

Uber is launching a subscription service in the US as it looks to convince people to use its service more often.

The scheme, called Ride Pass, costs $24.99 (£19) a month in Los Angeles and $14.99 in Austin, Denver, Miami and Orlando. It allows members to avoid price surging, the rise in price that Uber instigates during at-demand times.

Uber plans to launch the service in other US cities next year, but according to the BBC has no plans at present to introduce it in the UK.

“One thing we hear a lot from riders is that changes in price – however small – can make it tough to plan their day with Uber,” says product manager Dan Bilen.

“The daily commute is a classic example, and it goes something like this: you pay one low price for the ride to work, only to find the ride back home is a different story.”

He added: “We want to make Uber a reliable alternative to driving yourself – an affordable option people can use for their everyday transportation needs.”

More than 70 business figures are calling for the public to be able to vote on the final terms of Britain’s exit from the European Union. According to the Sunday Times, firms are warning the country faces “either a blindfold or a destructive hard Brexit”.

There are growing concerns among business leaders that a deal will not be reach or that if one is, it will limit access to the EU. The group ‘Business for a People’s Vote’ aims to put more pressure on the government to get a good deal for business.

The group includes former Sainsbury’s boss Justin King and James Daunt, the Waterstones’ CEO.

A letter to politicians says: “We are now facing either a blindfold or a destructive hard Brexit. Both these options will further depress investment.

“They will be bad for business and bad for working people. Given that neither was on the ballot in 2016, we believe the ultimate choice should be handed back to the public with a People’s Vote.”

Weight Watchers has vowed to improve its UK performances after the company was forced to lower revenue expectations due to a “challenging and competitive market”. Weight Watchers has about 400,000 subscribers in the UK, but CEO Mindy Grossman says the company is “behind” in several key areas, including brand strength.

Overall, subscribers were down 4.2 million in the third quarter, from 4.5 million in the prior quarter. Quarterly revenue and profit also came in below analyst expectations.

Weight Watchers is attempting to turnaround its business. In September, it rebranded as WW in a bid to refocus on the wellness market and better appeal to younger consumers. However, it faces growing competition from digital rivals.

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